Pneumatic riveting-machine.



PATENTED FEB. 13, 1906.

J.R.FRENOH.

PNEUMATIC RIVETING MACHINE.

APPLICATION FILED FEB 1 1904 2 SHEBTS-SHEET l.

No. 812,787 PATENTED FEB. 13, 1906. J. R. FRENCH.

PNEUMATIC RIVETING MACHINE.

APPLICATION FILED PEB.1,1904.

2 SHEETS-SEEET 2.

O the standard 1 beneath the arm 2.

specification.

UNrrEn STATES- PATENT orrron.

, 'Rg. FRENCH," or os ANGELES, CALIFORNIA.

PNEUMATIC.'RWETING-MAOHINE Specifica;ti on of Letters Patent.

Applicationfiled February, 1,1904. Serial No. 191,443.

Patented Fears, 1906;"

1'0. 11, whom it may concern.-

Be it known that 1, JOHN R. FRENCH, a citizen .of the United States, residing at Los -Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Pneumatic Riveting- Machines, of which the following is a The primary object of this invention is to provide a pneumatic riveting-machine with improved means for brin ing the riveter to Working position and holding it there in such vmanner as to largely remove the strain from permit of betthe handof the attendant and ter adjustment. I

A further object of the invention is to ro-. vide convenient means for turning on an .ofi

the compressed air supply tothe riveter,

such means being so located as to be operated by the same hand which operates to ad:- just the position of the riveter. Y

My invention comprises, in connection with a movable riveter, a fixed support or holder for the work, toward which the riveter a the riveter in inoperative position.

" date or extend over the work to be operated is moved or adjusted. by a lever. In ap lying the invention to pi e-riveting, to w purpose it is articular y adapted, the fixed support will e a mandrel, over which the pipe-sections will be placed. I The accompanying drawings illustrate the invention, and, referring to the same, F' ure 1 is a side elevation of a riveting-mac e embodying my invention. Fig. 2 is a detail section, partly in elevation, of the riveterbody and its operating-gear. Fig. 3 is a detail elevation of the riveter-operating gear and arbor with the handle andvalve-com:

trollin ring shown partly in section. Fi 4 is an e evation of part of the machine, ta enon the opposite side to Fig. 1 and showing Fig. 5 is an end elevation of the riveten Fig. 6 is a View similar to Fig. 4, showing the riveter operative position and partly in section.

.The frame of the machine comprises a standard 1 and overhan ing armor support 2, which is of sufficient ength to accommouponfor' example, a section of pipe. A fixed mandrel or work-holder 3 extends 1 3911111 e riveter 4 is mounted to move vertically on the arm or support 2, said arm having a veror away from the work-holder or mandrel 3 by a spring 7, surrounding the cylindrical body 6 and engaging at opposite ends, re

spectively, with the top of the bearing 5 and with ashoulder 8 on the riveter.

.The riveter 4 may be of any of the wellknown types, and its internal construction is therefore not illustrated, said riveter having being efi'ected by the lever 13, carried by a rock-shaft or arbor 14, pivoted or journaled in the arm and provided with a pinion 15, engaging in a rack29 in'the cylindrical body of the. riveter, so that partial rotation of thelever 13-will cause reciprocation of the riveter.

The 'lever 13 isprovided with a hand-grip portion for effecting such movement, and adjacent to such portion said lever is provided with means for effecting the operation of the rivetercontrolling valve lever 10, so that" said valve lever maybe controlled without removing the hand from the lever. means consists-of a supplementary lever 16, pivotedat 17 to lever 13 and having an arm 18 connected by rod 19 to a ring or rocking member 20, loosely mounted on the arbor 14, so as to turn freely thereon. A Wire or rod 21 is connected to the other side of this disk and to the valve-lever 10, so that when the lever 16 is pressed toward the handle portion of lever 13 by closing the hand thereon the re- Said sulting rotation of ring 20 will, through the Y wire 21 ,cause the valve-lever 10 to be operated to open the valve 24 of the riveter. (See Fig. 6.)

The rockngg member 20 being pivoted concentrically with hand lever 13, the movement of the latter does not materially affect said member. Sup lementary lever 16 hasa return-spring 25, that presses it away from the handle portionof lever 13.

' In order to enable the work to be accuratel set at each operation in proper position for t e riveter, a finder 23 may be provided,

consisting of apin, which may be depressed to bring its lower end into a rivet-ho Vance of the one being riveted. a

In applying invention to pipe-riveting 1 i ad? tomatically operated. The mandrel 3 eX-.

tends'liorizontally, the groove 26 being in the top thereof, so that the rivets placed within said groove will stay in place. The riveter is mounted to move vertically andin the plane of the groove, the sprin 7 serving to balance or sustain the weight 0 the riveter.

The operation is as riveted- -for example, p pin 1 (indicated at 29) -is laced on the work-holder or-ma'nd-rel 3 with t e rivet-holes in the vertical plane of the riveter-hammer and brought to proper osition .by use ofthe'finder 23. A rivet 27 1s then shoved up into the rivet-hole beneath the riveter and the lever 13 is operated by grasping the handle portion and turnin the andle orwardly in the direction toward the leftin Fig. 4 until it reaches the position shown in Fig. 6, which brings the-hammer 9 to "operative position in proximity tothe rivet. During this movement the ring 20 turns bodily with the handle and arbor and draws the Wire 21 down; but as the riveterbody is descendin at the same time the valve -lever 10 fofiows up this downward movement of the wire, the parts being so proportionedthat the downward movements of the valvehandle and the wire will be substantially equal. The riveter having been brought to operative position, the attendant presses the supplementary lever '16, which through the connection 19 2O 21 operates the valve-lever '10 to admit compressed air to the riveter, whereupon the hammer of the latter is operated in'the usual manner to perform the riveting operation. This having been effected, the attendant releases the lever 16 and allows the main lever 13 and the riveter tobe moved back to normal position by the spring 4. The piping is then moved forward to bringthe nextholeinto line and the operation is repeated. 7

The lever 13 enables the attendant to adust the-riveter to position with great accurac and also enables him to withstand the kic or recoil of the riveter with comparat'ivel little strain.

W at I claim is 1. Ina pneumatic riveting-machine, a support, a rivetermovably mounted therein and provided with valve mechanism, means for moving the riveter, and a connector from the valve mechanism to said means so arranged as to be operable to control the valve at any I position of the riveter.

2. In apneu'matic rivetmg-maclnne, a support, a longitudinally-movable riveter mountfollows: The work to be ism, .a lever for moving the riveter, and a connector longitudinally movable from the valve mechanism to the lever so arranged as to control the valve atany position of the lever and riveter.

3. In a pneumatic. riveting-ma'chine, a support, a riveter movable thereon and havi controlling-valve, a handle connected to ling means on said handle connected to said valve. I

4. In a pneumatic riveting-machine,'a support, 'a riveter. movable thereon, a pivoted hand-lever connected to move the riveter, a

controlling-valve for the riveter, a member pivoted concentrically with the said hand-lever and connected to said controlling-valve,

and operating means on the hand-lever connected to said member.

5. In a pneumatic riveting-machine, a support, a.riveter movable thereon, and provided witha controlling-valve, a pivoted hand-lever connected to move the riveter, a rocking member'connected to the controlling-valve and a supplementary lever on the hand-lever connecte'c to said rocking member- 6. In a pneumatic rivetingmachine, a

work-holder, a support, a rivetermounted to move vertically on said support, a rock-shaft pivoted on said support, an operating-handle on said rock-shafaa pinion in said rockshaft, a rack on the riveter engaged by said pinion, a rocking member loose on said rockshaft, a supplementary-lever on the aforesaid handle, a controlling-valve for the riveter, and connections from said rocking memher to said supplementary lever and to said valve.

7. In a pneumatic rivetingma'chine, a support, a riveter sliding in said support and pro vided with a controlling-valve, a spring enriveter to move it on its support, and controlgaging with the riveter and with the support 1 to move the riveter to inoperative position, a

rock-shaft carrying an o crating-lever and a pinion, a supplementary ever on said operating-lever, a rack on the riveter engaged by said pinion, a ring mounted to turn on said rock -shaft, and members connecting said ring with said supplementary lever and said valve. I

'8'. In a pneumatic riveting-machine, a sup' port, a longitudinally-movable riveter mount-v ed therein and provided with valve mechanism, means for moving the riveter, a longitudinally-miovable connector from the valve mechanism to said means, means formoving the connector longitudinally without operat ing the valve mechanism as the riveter is moved lon itudinally, and means for moving the connector at any time tooperate the.

valve mechanism.

9. Ina pneumatic riveting-machine, a lon-' gitudinally-movable riveter provided with a valve, a lever for operating the valve, a ban-- 6 5 edtherein and provided with valve mechanl dle provided with means for moving the riveter longitudinally, a lever on said handle, subscribing witnesses, at Los An eles, county 2. longitudinally-movable flexible connector of Los Angeles, and State of Caifornia, this 10 from the Valve-lever to the lever on the han- 23d dayof January, 1904.

dle, and means for taking up the slack of said 5fionnector as the l'iveter is moved longitudi- JOHN FRENCH nally in its support. Witnesses:

- In witness whereof I have signed my name ARTHUR P. KNIGHT,

to this specification, in the presence of two FREDERICK S. LYON. 

